/* (C) 2009 by Andrea Franceschini <andrea.franceschini@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "Stroke.h"

long Doodle::Stroke::id() const {
	if(_stroke.isEmpty()) {
		throw std::runtime_error("Empty stroke");
	}
	return _stroke.first().sessionID();
}

const Doodle::Cursor& Doodle::Stroke::first() const {
	if(_stroke.isEmpty()) {
		throw std::runtime_error("Empty stroke");
	}
	return _stroke.first();
}

const Doodle::Cursor& Doodle::Stroke::last() const {
	if(_stroke.isEmpty()) {
		throw std::runtime_error("Empty stroke");
	}
	return _stroke.last();
}

const Doodle::Cursor& Doodle::Stroke::operator[](int i) const {
	if(_stroke.isEmpty()) {
		throw std::runtime_error("Empty stroke");
	}
	if(_stroke.size() > i) {
		return _stroke[i];
	} else {
		throw std::runtime_error("No such element in this stroke");
	}
}
